Security is one of the important aspects in computing. In da...

Security is one of the important aspects in computing. In data transfer, security must be considered as one of the method implemented to ensure secure data transfer. Data transfer is transferring information from a location or host to another host, or server. To have a secure data transfer, The primary goal of any system is that the data cannot be modified by any external user or intruder. To avoid such a type of situation convert data into a non-readable form at sender side and convert that data in readable form again at receiver side. Data security- how to prevent someone else from knowing the contents of a message while it is being transmitted. Encryption - transform information into a different,Decryption - restore the original information from the encrypted form. Plaintext - original data. Cipher text - encrypted data.